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- 1Are you sure there're ___(different) between these two pictures?
- 2一个同学做托里拆利实验,测的大气压强得知总是偏大,可能是因为 A,玻璃管太硬B漏进了空气
- 3----____can you see in the picture?----Tom's mother.A.Who B.Which C.Whoes 急
- 4parents know their children best and are always in the best position to serve as their teachers
- 5英语翻译
- 6一根铁丝长五分之四米,比另一根短四分之一米,两根铁丝共几米?
- 7碳酸的化学式
- 8missing gone lost除了是否能做定语等区别外,在意思上有什么不同?
- 9要除掉CO2中少量HCl气体,用Na2CO3好还是NaHCO3好?
- 10三角形ABC三个顶点ABC的坐标分别为A(2,-1),B(1,-3),C(4,-5),(1)